Merge pull request #8853 from opengovsg/release_v6.264.0 #10489

Job	Run time
setup	4m 17s
test (firefox-login)	3m 20s
test (chromium-encrypt-submission)	8m 21s
test (firefox-encrypt-submission)	5m 26s
test (chromium-login)	2m 38s
	24m 2s

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